Pneumatic straw stacker



W. U. VAN DEVENTER.

Patented May 9,1922.

2 SHEETS-SHEET I.

W. O. VANDEVENTER. PNEUMATIC STBAW' STACKEIL APPLICATION FILED MAR-12,1921- Patented May 9, 1922.

2 SHEETSSHEET 2.

' I 2121071151" 0116mm 0. Use/7136116212797,"

WILL'IAMMO. VAN .nnvnn'rnn, OF

INDIANA: MANUFACTURING CORPORATION or WEST VIRGINIA.

OFFICE.

INDIANAPOLIS, INDIANl-l, .ASSIGNOR TO THE COMPANY, OF INDIANAPOLHIS, INDIANA, A

PNEUMATIC. sainaw STACKER.

Application filed March 12, 1921.

T 0 all c0 [tom it may concern:

Be it known that I, ILLIAMJ VAN Dnvnntrnn, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new Pneumatic Straw Stackers, of which the following is a specification.

My invention relates to improvements in wind stackers of that character designed to save grain wasted. by the threshing machine. commonly known as grain saving wind stackers, and consists in. certain details of constructionv and arrangements of parts as will be hereinafter more fully pointed. out.

In the accompanying drawings, forming part hereof, Figure 1 isanelevation of a stacker fan with my improvement applied thereto; Fig.1 2,11 detail view of a form of driving mechanism which I employ, Fig. 3, a plan of a modified, formof said improvement; Fig. 4, a perspective view of the roll forming part. of my invention, and Fig. 5 is a fragmentary sectional view of said roll.

In said drawings, 5, indicates a fan drum of any appropriate form embodying an outlet, 6, and fan, 7, as usual. Adjacent to inlet, 8, of said fan drum I secure suitable brackets, 9, in whichI mount either one of my improved rolls, 1.0, as indicated in Fig. 1., where a single roll is employed, or two or more rolls, 10 and 10, may be mounted as shown in Fig. 3. Said roll 10 is corrugated longitudinally as indicated in Fig. 4, and as a roll for the purpose employed is not required to move a heavy load I' may construct the same of sheet metal, 11, and in each end thereof insert a head, as 1.2, in which is mounted a gudgeon, 13, designed to rest in the supporting brackets 9. The roll 10 I prefer to groove circumferentially, as indicated in Fig. 3, which is also provided with glide-eons 13 for mounting in brackets 9.

It is common practice to employ a conveyer or an anger, as 15, in connection with. grain saving stacker-s, for delivering the saved grain into the tailings auger, 16, of the separator, or otherwise, which auger may be driven from a eountershaft, 17, or in any suitable manner by a belt or sprocket system, as 18, which communicates with a gearing system, 19, for actuating said auger,

all in a well known manner. To said gear- Specification of Letters Patent.

and useful Improvements in talented May 9, 1922. Serial No. 451,670.

ing system 19, which is of a common construction as indicated, I connect a belt or sprochet chain, as E20, and sprocket 21., for

with which said, chain engages to rotate such rolls, the arrangement for a single roll being; ii'u'licated in F in: 2, whereas, where two rolls are employed, as indicated in F ig. 3, both rolls are also provided with sprockets 21 about which a chain, as 20, engages and rotates the same toward the fan inlet 8. Although i have somewhat specifically described the driving mechanisms for actuating auger 15 and the roll or rolls 1O, 1.0 it will be understood. that while such mechanisms are of a well known form and are illustrated and referred to in the manner employed, other methods may be devised for actuating said rolls.

In operation the straw, chaif and other material discliargine from the separator is delivered into hopper, 22, of the wind stacker in the usual manner, and as this material passes into the fan inlet 8 it travels across the grain trap comprising either one or more of my ii'nproved longitudinally corrugated rolls or one of the same and a circumferentia]ly ,sn'ooved roll as 10 indicated in Fig. 3. Loose grain being; heavier than the straw. chaff and other material, sifts to the bottom thereof, and as it passes onto the roll 10 where such single roll constitutes the trap, such 1min becomes trapped in the furr is 11 of the roll, while the lighter material is drawn into the stacker fan by the suction thereof and discharged onto the straw stack as sual. The roll being rotated in the direction toward the fan actuates the material, and constantly moves it to the tan which movement assists the suction from the stacker fan to withdraw such material. from the hopper during which action the roll 10 is carrying the trapped grain around in its furrows and dumping it so that it will fall into hopper, 23, and be conveyed therefrom by the auger 15, as indicated, or in any desired manner. The arrangement indicated in Fig. 3, comprising" a longitudinally grooved roll 10 and a circumferentially grooved roll 10 produces a highly efficient trap for the reason that the roll 10 acts as a conveyer which receives grain in its furrows and carries it toward roll 10 so that such grain passes downwardly through the space 8 therebetween, said roll at the same time moving the straw and fluffy material to said roll 10 and into the suction of the stacker tan. Grain which is carried with the other material across the space 8' sitts into the circumierential grooves of roll 10 and is carried around and passes through space 9 between said roll and the tan drum, such grain thus passing through these spaces and discharging into hopper 23 from which it is conveyed in any desired manner. By this arrangement of rolls grain entering the furrows therein is shielded from the tan suction by the roll furrows and moving lighter material going into the fan, and, as the rolls are constantly rotating, such grain quickly passes through the spaces provided for its escape and delivery through the rolls.

I claim as my invention:

1. In a wind stacker, the combination of a fan casing, a tan therein, a hopper communicating with said casing for conveying material thereinto, a grain trap between said casing and hopper comprising a longitudinally corrugated'roll, and means for rotating said roll to convey material towards said fan and for trapping and conveying grain separated from such material.

2. In a wind stacker, the combination, of

a fan casing, a fan therein, a hopper communicating with said casing for conveying material thereinto, supporting means secured to said casing adjacent its inlet, a trap mounted in, said supporting means comprising a longitudinally corrugated roll for separating and saving grain from other material, and means for rotating said roll.

3. In a wind stacker, the combination of a fan casing, a. tan therein, a hopper (ommunicating with said casing for conveying material thereinto, supporting means scoured to said casing adjacent its inlet, longitudinally corrugated rotary means mounted in said support for separating and saving grain from other material, means for conveying such saved grain away from said corrugated rotary means, and means for simultaneously actuating said conveying and corrugated means.

4. In a wind stacker, :1 grain saving trap embodying a longitudinally corrugated roll. and means for actuating said roll.

5. In a wind stacker, a grain saving trap comprising a longitudinally corrugated roll constructed of sheet metal. heads in the ends of said roll, and. gudgeons mounted in said heads constituting bearings for said roll.

6. In a wind stacker, a grain saving trap comprising a longitudinally corrugated roll, a circumferentially grooved roll, and means for rotating said rolls.

In testimony whereof I aflix my signature.

IVILLIAM O. VAN DEVENTER. 

